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Source separation of foetal heart sounds and maternal activity from single-channel phonograms: A temporal independent component analysis approach

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Jimenez-Gonzalez, Aida and James, C. J. (2008) Source separation of foetal heart sounds and maternal activity from single-channel phonograms: A temporal independent component analysis approach. In: Computers in Cardiology 2008, Bologna, Italy, Sep 14-17, 2008. Published in: Proceedings of Computers in Cardiology 2008, Vol.2 pp. 949-952. ISSN 0276-6547, ISBN: 978-1-4244-3706-1. doi:10.1109/CIC.2008.4749200

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Official URL: http://dx.doi.org/10.1109/CIC.2008.4749200

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Abstract

Here we successfully extracted sources from noisy single-channel abdominal phonograms. First, an appropriate matrix of delays was constructed; then multiple independent components were calculated using TDSEP; finally, components were projected back onto the measurement space and grouped using K-means. Three single-channel phonograms from different subjects were analysed. Results showed a better-quality and more objective extraction of Foetal Heart Sounds (S1-S2), maternal activity and line-noise by using this temporal independent approach (versus a FastICA version). Future work will look for extracting more sources and a robust method to measure the quality of the extraction.

Item Type: Conference Item (Paper)
Subjects: R Medicine > RG Gynecology and obstetrics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Journal or Publication Title: Proceedings of Computers in Cardiology 2008
Publisher: Institute of Electrical and Electronics Engineers
ISSN: 0276-6547, ISBN: 978-1-4244-3706-1
Official Date: 2008
Dates:
DateEvent
2008Published
Volume: Vol.2
Page Range: pp. 949-952
DOI: 10.1109/CIC.2008.4749200
Status: Not Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Consejo Nacional de Ciencia y TecnologĂ­a (Mexico) [Mexican Council for Science and Technology] (CONACYT)
Conference Paper Type: Paper
Title of Event: Computers in Cardiology 2008
Type of Event: Conference
Location of Event: Bologna, Italy
Date(s) of Event: Sep 14-17, 2008

Data sourced from Thomson Reuters' Web of Knowledge

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